In a Nutshell

The Fine Print

Promotional value expires Mar 20, 2013. Amount paid never expires.Limit 1 per person, may buy 2 additional as gifts. Valid only for location purchased. Reservation required. New clients only.Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.

Orangetheory Fitness

Working out with professional gym equipment is preferable to improvised workouts, such as coffee-table parkour and trying to lift one of everything at Costco. Bulk up with this Groupon.

$29 for Four Interval-Training Group Fitness Sessions ($100 Value)

Each 60-minute workout is broken down into four intervals that range from 10 to 30 minutes. During each interval, attendees monitor their heart rates while using treadmills, free weights, rowing machines, or suspension training to burn up to 900 calories per class.

Orangetheory Fitness

Orangetheory Fitness, which was featured in the New York Times, has been touted by founder Ellen Latham as a new and effective plateau-busting workout. During 60-minute sessions, participants can burn up to 900 calories. Backed by the science of post-exercise oxygen consumption (EPOC), Orangetheory Fitness utilizes heart-rate monitored training that's designed to keep heart rates in a target zone to stimulate metabolism and increase energy.

The Latham-designed studios are filled with treadmills, rowing machines, suspension-training straps, and free weights. Using this equipment, her program relies on intense fitness-plateau-busting activity combined with fatigue-level strength training to boost heart rates over 85% for 12 to 20 minutes. One 60-minute workout might come in several 10–30 minute chunks devoted to a different cardiovascular or muscle-building exercise, helping attendees jumpstart their metabolisms while burning up to 900 calories—or roughly one chocolate-covered ham—per session.